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Finding the Fourth Proportional to 233.79, 322.68 and 187.23

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Solution

The fourth proportional to 233.79, 322.68 and 187.23 is: 258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.79 : 322.68 = 187.23 : x
  2. Step 2: Convert to fraction form
    233.79/322.68 = 187.23/x
  3. Step 3: Cross multiply
    233.79x = 322.68 × 187.23
  4. Step 4: Simplify right side
    233.79x = 60,415.38
  5. Step 5: Solve for x
    x = 60,415.38/233.79
  6. Step 6: Final answer
    x = 258.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.